JP4637103B2 - Round stapler for hemorrhoid surgery - Google Patents

Description

(1. Technical field)
The present disclosure relates to a circular stapler for hemorrhoid surgery. More particularly, the present disclosure relates to a modified circular stapler for simplifying the process of drawing prolapsed hemorrhoidal tissue and / or mucosal tissue into the stapling head in hemorrhoid surgery.

(Background of related technology)
A circular stapler (HCS33), which is suitable for hemorrhoid surgery and shows very good results, has recently been published. However, during its use, some technical difficulties (eg, pulling a suture or thread through a hole in the side of the stapler head, or repeatedly tying the ends of a suture or thread) To occur). As a result, after already set up, the device is repeatedly moved from its location or temporarily removed.

  Accordingly, a need has arisen for a modified circular stapler that eliminates the above technical difficulties that arise during hemorrhoid surgery.

(Summary)
In accordance with the present disclosure and based on the above recognition, a ring, a displacing tube, or one or more transition rods (with hooks or holes) that can move independently or arbitrarily along the shaft of the stapler A modified circular stapler is disclosed that may comprise: The shaft of the stapler may include a pin that connects the anvil to the stapler head, a pin attached to the anvil, and a sheath movably attached to the stapler head.

  In accordance with the first embodiment of the presently disclosed circular stapler, a ring with any style of flange and connectable rim is attached to the pin of the anvil. The ring is free to move along the pin and sheath shaft. The transfer tube surrounds the sheath, has a hookable hook at its upper end that can be connected to the mounting rim, and has a transfer button at its lower end. There is a slot that is placed longitudinally through the stapler body (eg, head, neck or handle) to which the transfer button moves. As another possible solution, the transfer tube can be replaced by a transfer rod with a hookable hook that can be connected to a connecting rim.

  In accordance with the second embodiment of the presently disclosed circular stapler, the pin and sheath are secured by an insoluble connection, thus defining an integral shaft. The transfer tube forms a rigid unit with a ring and is freely movable along the shaft. A transfer button is connected to the lower end of the transfer tube. At the neck of the stapler there is a slot that extends in the longitudinal direction and places a lateral slot portion at its upper end that locks the transfer button in place. According to another possible solution, the transfer tube can be replaced by a transfer rod.

  According to a third embodiment of the presently disclosed circular stapler, a thread or wire comprising a small ring is connected to a ring that is freely movable along the shaft. The stapler neck includes a hole through which the thread or wire exits the neck.

  In accordance with a fourth embodiment of the circular stapler of the present disclosure, a transfer rod or multiple transfer rods are provided. Each transfer rod has a hole or hook at its upper end. In the stapler neck, there is a slot that can be provided with a lateral component that extends longitudinally and locks the transfer button in place.

  As an advantageous solution possible, one or more transfer rods can be at least partially embedded in a single cast shaft of pins and sheaths.

  Various embodiments of a circular stapler for hemorrhoid surgery of the present disclosure are disclosed herein with reference to the drawings.

(Detailed description of embodiment)
Embodiments of the presently disclosed circular stapler will now be described in detail with reference to the drawings, wherein like reference numerals designate identical or corresponding elements in each of the several views.

  With reference to FIG. 1, the circular stapler of the present disclosure includes an anvil 1 and a stapler or stapler head 10. The anvil 1 is movably supported with respect to the stapler head 10 in a known manner between an open position and a closed position. The stapler head 10 supports a plurality of staples (not shown). The stapler is operable in a known manner for firing staples from the stapler head 10 into or against the anvil 1. The stapler also includes a knife (not shown) that is movable in a known manner from within the stapler head 10 toward the anvil 1 to cut tissue located between the anvil 1 and the stapler head 10.

  As can be seen in FIG. 1, the ring 3 can slide freely along a releasable shaft comprising the pin 2 of the anvil 1 and the sheath 6 of the stapler head 10. A disassembleable shaft connects the anvil 1 to the stapler. At the upper edge of the ring 3, there is an optionally positionable flange 4, which is used to hang up or engage the purse string suture. At the lower edge of the ring 3, there may be a connectable rim 5 that allows the ring 3 to be connected to a transfer member (eg connectable transfer tube 7 or transfer rod 13). The transfer tube 7 is disposed outside the sheath 6. At the upper end of the transfer tube 7 or the transfer rod 13, there is a hangable hook 8. There is a transfer button 9 at the lower end of the transfer tube 7 or the transfer rod 13. In the stapler neck 11, there are slots 12 arranged in the longitudinal direction. FIG. 1A shows a transfer rod 13 having a connection component in the form of a transfer button 9 on the proximal end and a hookable hook 8 on the distal end.

  As can be seen in FIG. 2, the pin and sheath are integrally formed as a shaft 16 that is not disassembleable. The shaft 16 is surrounded by an independent transition tube 15, the lower end of which is the transition button 9, and the upper end of which is the flange 4. The transfer tube or transfer rod forms a rigid unit with a ring and surrounds the shaft 16. The upper end of the longitudinal slot 12 is disposed on the stapler neck 11 and comprises an angled continuation that forms a locking slot 17 for receiving the transfer button 9. FIG. 2A shows the transfer rod 18 forming a rigid unit comprising the ring 3.

  As can be seen in FIG. 3, a transfer member comprising a thread or wire 19 with a small ring 20 at the proximal end can be connected to the ring 3, which is disassembled defined by the pin 2 and the sheath 6. It can move freely along the shaft. At the neck 11 of the stapler, a thread or wire 19 is placed through a hole 21 that extends from the neck 11 and is movable.

  As can be seen in FIG. 4, the pin and sheath are formed as an integral shaft 16 that is not disassembleable. The ring 3 is replaced by one or more active sticks or transfer rods 23, each of which comprises a hook 22 or advantageously a hole 24. There is a transfer button 9 at the lower end of each transfer rod 23. The transfer rod 23 extends beside the shaft 16 or is slidably embedded within the shaft 16 (FIG. 4A). The longitudinal slot 12 is disposed on the stapler neck 11 and has at its top end a component 14 that can be rotated around the neck 11 to lock the transfer button 9 in a certain position relative to the neck 11. The transfer button 9 can be arbitrarily moved within the slot 12 along with the transfer rod 23.

The operation of the mechanism according to the invention is as follows:
After placing the inner purse string suture in the rectum, the anvil 1 is introduced into the rectum. The anvil 1 can be dish-shaped. The ring 3 slides freely on the pin 2 of the anvil 1. A purse string suture is secured with a knot to the body of the ring 3 or onto the body of the ring 3 under an optionally positionable flange 4. The pin 2 is then connected to the sheath 6 and the transition tube 7 is connected to the connecting rim 5 using the hookable hook 8. Alternatively, the transfer tube 7 can be replaced by a transfer rod 13. Prior to operation, the transfer button 9 is placed at the upper end of the slot 12. Here, the transfer button 9 is pulled down, and the tissue of the heel attached to the ring 3 with the purse string suture is pulled down and inside the stapling head 10. The stapler can then be closed and actuated in a known manner.

  According to another possible solution, a thread or wire 19 with a ring or small ring 20 is connected to the ring 3 (see FIG. 3). The thread 19 is pulled through the hole 21 located in the stapler neck 11 and the ring 3 is pulled down with the attached scissor tissue through the purse string suture.

  If the stapler has an integral shaft 16 for the pin and sheath, an independent transfer tube 15 or transfer rod 18 that forms a rigid unit with the ring 3 may be used. The transfer button 9 can be placed in the locking slot 17 or can be locked by a locking component 14 (which can advantageously be a rotatable ring), while the stapler head 10 is Pushed or inserted into, the suture knot is transferred under the flange 4 of the ring 3. After this, the transfer button 9 moves into the longitudinal slot 12 or the locking component 14 rotates to unlock the transfer button 9. Here, the transfer button 9 can be pulled down. The rest of this procedure is similar to the above. As a possible variation, instead of using the ring 3, the transfer rod 23 is advantageously provided with a hole 24 and / or a hook 22 at its distal end. Its use is similar to that described above. That is, the purse string suture is secured through the hole 24 or with the hook 22. The transfer rod 23 is disposed along or near the shaft 16. Alternatively, the transfer rod 23 can be embedded in the shaft 16 (FIG. 4A).

  If the stapler has multiple transfer rods 23 (eg, two such rods), two independent half drawstring sutures can be attached to the ends of two separate transfer rods 23, each of which Comprises holes 24 or hooks 22. In this way, the escape rod hemorrhoid cushion portion relaxed to different degrees is pulled into the stapler head 10, thereby facilitating different cuts of the different hemorrhoid cushion portions and making different cuts at different degrees to the transfer rod 23. The ability to pull is obtained. The transfer rod 23 can be pulled at different distances to provide an ablation proportional to the relaxation of the tissue portion of each hemorrhoid.

  An important advantage of a solution according to an embodiment of the present invention is that in the case of hemorrhoid surgery using the stapler of the present invention, the surgical technique is simplified and moving or removing the instrument location is eliminated. As well as ensuring that the excision is proportional to the relaxation of the respective hemorrhoid tissue.

FIG. 1 is a side elevational view with parts of the distal portion of one embodiment of the presently disclosed circular stapler separated. FIG. 1A is a side elevational view of a transfer rod having the connection components and buttons of the circular stapler shown in FIG. FIG. 2 is a side elevational view of the distal portion of a second embodiment of the presently disclosed circular stapler. FIG. 2A is a side elevation view of a transfer rod having one ring and button of the circular stapler shown in FIG. FIG. 3 is a side elevation, partial cross-sectional view, with parts of the distal portion of a third embodiment of the circular stapler of the present disclosure separated. FIG. 4 is a side elevational view of a distal portion of a fourth embodiment of the presently disclosed circular stapler. FIG. 4A is a cross-sectional view when viewed through a shaft with a transfer rod slidably mounted or embedded within the shaft, according to an alternative embodiment of the circular stapler shown in FIG. FIG. 4B is a cross-sectional view when viewed through a shaft with a transfer rod slidably mounted or embedded in the shaft, according to another alternative embodiment of the circular stapler shown in FIG.

Claims (15)

A circular stapler for performing hemorrhoid surgery, the stapler comprising:
Anvil (1) and stapler head (10), wherein the anvil (1) is supported on a shaft and is movable relative to the stapler head (10) between an open position and a closed position (1) and a stapler head (10),
The stapler comprises a ring (3) and a transfer member, the ring (3) being optionally transferable along the shaft, the ring being a flange for engaging a purse string suture A first end with a connecting component (8) connected to the ring, and a second end with a transfer button (9) extending through the stapler body. A circular stapler, wherein the transfer member is movable to arbitrarily transfer the ring along the shaft. The circular stapler according to claim 1, wherein the transfer member comprises a transfer rod (13). The circular stapler according to claim 1, wherein the transfer member comprises a transfer tube (7). The circular stapler according to any one of claims 1 to 3, wherein the shaft comprises a pin (2) attached to the anvil and a sheath (6) supported movably on the stapler. A circular stapler, wherein the pin is removable from the sheath. 5. A circular stapler according to any one of claims 1 to 4, wherein the ring comprises a flange (4) and a connecting rim (5). 6. A circular stapler according to any one of the preceding claims, wherein the stapler body comprises a longitudinal slot (12), which longitudinal slot guides the movement of the transfer button (9). Thus, a circular stapler in which the second end of the transition member extends through the longitudinal slot. A circular stapler for performing hemorrhoid surgery, the stapler comprising:
Anvil (1) and stapler head (10), wherein the anvil (1) is supported on a shaft and is movable relative to the stapler head (10) between an open position and a closed position (1) and a stapler head (10),
The stapler comprises a ring (3) and a transfer member (15, 18), the ring (3) being optionally transferable along the shaft, the transfer member (15, 18) being A first end connected to the ring and a second end extending through the body of the stapler, the transfer member moving to optionally transfer the ring along the shaft Is possible, wherein the staple body comprises a longitudinal slot (12), the second end of the transition member being such that the longitudinal slot guides the movement of the transition button (9). Circular stapler, characterized in that it extends through the longitudinal slot and the stapler comprises a locking slot (17) for locking the transfer member (15, 18) in a fixed position. The circular stapler according to claim 7, wherein the transfer member comprises a transfer rod (18). The circular stapler according to claim 7, wherein the transfer member comprises a transfer tube (15). A circular stapler according to any one of claims 7 to 10, wherein the transfer member comprises a transfer button (9). 11. A circular stapler according to any one of claims 7 to 10, wherein the transition member forms a rigid unit comprising a ring (3). A circular stapler for performing hemorrhoid surgery, the stapler comprising:
An anvil (1), a stapler head (10) and a body in communication with the stapler head, the anvil (1) being supported on a shaft and between the open and closed positions, the stapler head (10 ) And can be moved
The stapler comprises a ring (3) and a transfer member, the ring (3) being optionally transferable along the shaft, the ring comprising a flange for engaging a purse string suture; The transition member comprises a thread or wire (19) and has a first end secured to the ring and a second end extending through the stapler body, the transition member extending along the shaft A circular stapler characterized in that the ring is movable so as to be arbitrarily transferred. 13. A circular stapler according to claim 12, wherein the shaft comprises a pin (2) attached to the anvil and a sheath (6) movably supported on the stapler, the pin comprising the sheath. A circular stapler that can be removed from. A circular stapler according to any one of claims 12 and 13, wherein the ring comprises a flange (4) and a connecting rim (5). 15. A circular stapler according to any one of claims 12 to 14, wherein the stapler body comprises a hole (21) and the transition member (19) extends through the hole (21). Circular stapler.

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